National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Mostly Cloudy

35°F

2°C

Humidity 31%
Wind Speed SE 7 mph
Barometer 30.39 in (1029.0 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 18 Mar 4:54 pm EDT
Extended Forecast for

Watertown MA

  • Tonight

    Tonight: Partly cloudy, with a low around 24. Southeast wind around 6 mph becoming calm in the evening.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 44. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. South wind around 6 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 54. Southwest wind 3 to 7 mph.

    High: 54 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Rain likely, mainly after 3am. Mostly cloudy, with a low around 40. South wind around 6 mph. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely

  • Saturday

    Saturday: Rain likely, mainly before noon. Mostly cloudy, with a high near 54. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 54 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40. Southwest wind around 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 7am. Mostly cloudy, with a high near 58. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 58 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain before 1am. Partly cloudy, with a low around 33. North wind around 8 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 24. Southeast wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 44. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 32. South wind around 6 mph.
Friday
Increasing clouds, with a high near 54. Southwest wind 3 to 7 mph.
Friday Night
Rain likely, mainly after 3am. Mostly cloudy, with a low around 40. South wind around 6 mph. Chance of precipitation is 60%.
Saturday
Rain likely, mainly before noon. Mostly cloudy, with a high near 54. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 40. Southwest wind around 7 mph.
Sunday
A chance of rain after 7am. Mostly cloudy, with a high near 58. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Sunday Night
A chance of rain before 1am. Partly cloudy, with a low around 33. North wind around 8 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 42. North wind around 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 27. North wind 6 to 8 mph.
Tuesday
Partly sunny, with a high near 42. North wind 6 to 10 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 29. Southwest wind around 8 mph.
Wednesday
Partly sunny, with a high near 48. West wind 7 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
2:31 pm EDT Mar 18, 2026
Forecast Valid:
4pm EDT Mar 18, 2026-6pm EDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation